2 2 KEY TO TlIJi WATKR UIRDS OF FLORIDA. 



Family ANATID^E. Ducks, Geese, and Swans. 

 Subfamily MERGIN^E. Mergansers, TooTii-uiLLiiD Ducks. 



Merganser americana. 



(1) Head greenish or blackish; bill narrow, with tooth=like serrations. 



Length, 26.50 ; Wing, 1 1 : Tarsus, 2 ; Bill, 2.10. Un- 

 der parts creamy white tinged with sahnon color. Herganser americana. 



American flerganser (male). 

 Sheldrake. See page So 



Length, iiJJ ; Wing, O ; Tarsus, i.yo; Bill, 2.30. Breast 



brown streaked with black. Merganser serrator (male). 



Red=breasted Merganser. 

 Sheldrake. See page 81 



Head brownish or grayish ; bill narrow, with tooth-like serrations. 



Length. 24.50; Wing, J). 75; Tarsus, 1.90; Bill, 2. 

 Distance from nostril to tip of bill less than 



1.50, Merganser americana (female). 



American flerganser. 



See page So 



